Small metal crushing system with inert gas protection

Abstract

The utility model provides a small-sized metal crushing system with inert gas protection, which comprises a material receiving barrel (1), a fixed frame (2), a disc crusher (3), a spiral conveyer (4) and a feeding bin (5), the feeding bin (5) is arranged on the uppermost layer (24) of the fixed frame, and the spiral conveyer (4) is arranged below the feeding bin (5) and is arranged on the middle layer (23) of the fixed frame; the disc crusher (3) is arranged below the spiral conveyor (4) and is mounted on the lowermost layer (22) of the fixing frame, and a discharge port (32) of the disc crusher is provided with an inflation port (31) for inflating inert gas into the disc crusher; and the material receiving barrel (1) is arranged below the disc crusher (3). The small metal crushing system with inert gas protection is simple in structure and convenient to operate and clean, inert gas is filled for protection when alloy powder is prepared, the yield can be effectively increased, and the oxygen content in powder alloy can be effectively controlled.

Description

Technical Field

[0001] The utility model relates to a metal crushing technology, in particular to a small metal crushing system with inert gas protection. Background Art

[0002] At present, when there is a demand for small batches and small-size powder alloys, there is no dedicated small equipment for production, and the only way is to use a jaw crusher for gradual crushing, which has the following disadvantages: first, the powdering rate is low, and repeated crushing takes a long time; second, because it is a semi-open crushing, the oxygen content in the alloy is uncontrollable. In order to prevent cross contamination, the equipment needs to be dismantled and cleared every time the variety is switched, so it is not suitable to use a large-scale grinding system. Utility Model Content

[0003] The purpose of the utility model is to propose a small metal pulverizing system with inert gas protection in view of the many problems existing in the current production of small-size powder alloys by gradual crushing with a jaw crusher. The system has a simple composition and is convenient for operation and cleaning. When the system prepares alloy powder, inert gas protection is filled in, which can effectively increase the output and control the oxygen content in the powder alloy.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a small metal crushing system with inert gas protection, including a receiving barrel, a fixed frame, a disc crusher, a screw conveyor and a feeding bin, wherein the feeding bin is arranged on the uppermost layer of the fixed frame, and the screw conveyor is arranged below the feeding bin and installed on the middle layer of the fixed frame; the disc crusher is arranged below the screw conveyor and installed on the lowermost layer of the fixed frame, and the discharge port of the disc crusher is provided with a charging port for charging inert gas into the disc crusher; the receiving barrel is arranged below the disc crusher. The discharge port of the feeding bin is connected with the feed port of the screw conveyor through a hose, the outlet of the screw conveyor is connected with the feed port of the disc crusher through a hose, and the discharge port of the disc crusher is connected with the feed port of the receiving barrel through a hose.

[0005] Furthermore, a charging port is provided in the middle of the upper cover of the charging silo, a vent hole is provided in the middle of the charging port of the charging silo, the upper cover and the silo are fixed with bolts, and a charging port is provided at the bottom of the charging silo. The charging port of the charging silo is made of a finished quick-release clamp, the lower part of the clamp is welded to the upper cover of the charging silo, a blind plate is welded to the upper part and a vent hole is welded. The upper cover of the charging silo and the upper flange of the silo are matched and provided with through holes, and a silicone pad is added in the middle to seal when the upper cover of the charging silo and the upper flange of the silo are connected, and bolts are used to tighten during installation.

[0006] Furthermore, the inner diameter of the feed port of the screw conveyor is greater than or equal to the inner diameter of the discharge port of the feeding bin, and the centers of the feed port of the screw conveyor and the discharge port of the feeding bin are on the same vertical line.

[0007] Furthermore, the feeding port of the feeding bin and the feeding port of the screw conveyor are connected and sealed using a soft connection.

[0008] Furthermore, the screw conveyor motor is a variable frequency motor equipped with a frequency converter, and the discharge flow rate is adjustable during operation. The inner diameter of the screw conveyor outlet is greater than or equal to the inner diameter of the disc crusher feed port, and the centers of the two circles are on the same vertical line.

[0009] Furthermore, the screw conveyor outlet and the disc crusher feed port are connected and sealed using a soft connection.

[0010] Furthermore, the inner diameter of the material discharging port of the disc crusher is greater than or equal to the inner diameter of the material feeding port of the receiving bucket, and the centers of the two circles are on the same vertical straight line as much as possible during operation.

[0011] Furthermore, the material receiving bucket is arranged on a tray with universal wheels.

[0012] Furthermore, the uppermost layer of the fixing frame is provided with a cross brace for fixing the welding feeding bin.

[0013] Furthermore, the upper edge of the middle layer of the fixing frame is lower than the outlet of the screw conveyor.

[0014] Furthermore, the bottom side frame of the middle layer of the fixing frame is higher than the height of the feeding port of the disc crusher to prevent the disc crusher door from being blocked.

[0015] Furthermore, the lower edge of the lowest layer of the fixing frame is higher than the discharge port of the disc crusher.

[0016] Furthermore, the height of the lowest layer of the fixing frame is higher than the height of the material receiving bucket, so that the material receiving bucket can be easily moved out after being filled with materials.

[0017] Furthermore, a support leg is provided at the bottom of the fixing frame, and wheels are provided at the bottom of the support leg. There are four wheels, two universal wheels and two fixed wheels, so as to facilitate the movement of the entire crushing system.

[0018] The working principle of the utility model of a small metal crushing system with inert gas protection is as follows: when working, the feeding port of the feeding bin is opened, and materials with suitable particle size are filled, and inert protective gas is charged from the charging port located at the discharge port of the disc crusher. After the requirements are met, the disc crusher and the screw conveyor are turned on, and the materials flow into the screw conveyor through the feeding bin, and then are transported by the screw conveyor into the disc crusher for crushing, and the crushed materials enter the receiving barrel. After the operation is completed, the soft connection at the receiving barrel is disassembled, the receiving barrel is removed, and the materials are poured into a suitable container to complete a crushing operation.

[0019] The utility model is a small metal crushing system with inert gas protection, which has the following advantages compared with the prior art:

[0020] 1) The small metal crushing system with inert gas protection of the utility model has simple equipment composition, convenient operation and cleaning, and is suitable for producing small batches of alloy powder;

[0021] 2) The small metal crushing system with inert gas protection of the utility model is protected by inert gas during operation, which can effectively control the oxygen content when the alloy is crushed, and provide protection when crushing flammable and explosive metal powders to ensure operation safety;

[0022] 3) Production practice has proved that the small metal crushing system with inert gas protection of the utility model has fully achieved the expected effect.

[0023] In summary, the small metal grinding system with inert gas protection of the utility model has a simple configuration, occupies a small space, is flexible to move, and is convenient for cleaning during product switching. It can realize metal crushing under inert gas protection and is suitable for the production of products that require strict control of oxygen content during alloy crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the general assembly of a small metal crushing system with inert gas protection;

[0025] Figure 2 This is a schematic diagram of the feeding bin structure;

[0026] Figure 3 is a schematic diagram of the fixed frame structure;

[0027] Figure 4 It is a schematic diagram of the disc crusher structure;

[0028] Figure 5 It is a schematic diagram of the structure of the screw conveyor;

[0029] Figure 6 It is a schematic diagram of the receiving barrel structure. DETAILED DESCRIPTION

[0030] The present invention is further described below with reference to the embodiments:

[0031] Example 1

[0032] This embodiment discloses a novel small-scale metal crushing system with inert gas protection, such as Figure 1-6As shown, it includes a receiving barrel 1, a fixed frame 2, a disc crusher 3, a screw conveyor 4, and a feeding bin 5. The fixed frame 2 has three layers, and the legs 21 are provided with wheels; the feeding bin 5 is arranged on the uppermost layer 24 of the fixed frame, and the upper cover 53 of the feeding bin is provided with a feeding port 54 and a vent hole 55, and the upper cover 53 of the feeding bin is fixed to the bin with bolts; the screw conveyor 4 is arranged below the feeding bin 5 and installed on the middle layer 23 of the fixed frame; the disc crusher 3 is arranged below the screw conveyor 4 and installed on the lowermost layer 22 of the fixed frame, and the discharge port 32 of the disc crusher is provided with an air charging port 31; the receiving barrel 1 is arranged below the disc crusher 3, and a tray 11 with universal wheels is arranged below the receiving barrel 1. The feeding bin discharge port 51 is connected to the screw conveyor feed port 43 through a hose, the screw conveyor outlet 41 is connected to the disc crusher feed port 33 through a hose, and the disc crusher discharge port 32 is connected to the receiving barrel feed port 12 through a hose.

[0033] The uppermost layer of the fixing frame 2 is provided with a cross brace for fixing the welding charging bin 5 .

[0034] The bottom side frame of the middle layer 23 of the fixing frame 2 is higher than the feeding opening 33 of the disc crusher to prevent the disc crusher 3 from being blocked from opening and closing. In this embodiment, the bottom side frame of the middle layer of the fixing frame is 12 mm higher than the feeding opening 33 of the disc crusher.

[0035] The bottom layer 22 of the fixed frame 2 is higher than the material receiving bucket 1, so that the material receiving bucket can be moved out after being filled with materials. In this embodiment, the bottom layer 22 of the fixed frame 2 is 50 mm higher than the material receiving bucket 1.

[0036] The fixed frame outrigger wheels are two universal wheels and two fixed wheels, which facilitates the movement of the entire crushing system.

[0037] The charging port 54 of the charging silo is made of a finished quick-release clamp. The lower part of the clamp is welded to the charging silo cover 53, and the upper part is welded with a blind plate and an opening to weld the air vent 55. The air vent 55 is a hollow round tube welded to the iron plate. During operation, nitrogen is filled from the bottom, and then slowly passes through the equipment and the materials in the silo, and finally discharged from the air vent 55. The charging silo cover 53 and the upper flange of the silo 52 are matched and provided with through holes. When the charging silo cover 53 and the upper flange of the silo 52 are connected, a silicone pad is added in the middle for sealing, and bolts are used to tighten during installation. In this embodiment, the model of the finished quick-release clamp used is φ219mm;

[0038] The inner diameter of the screw conveyor feed port 43 is greater than or equal to the inner diameter of the charging bin discharge port 51, and the centers of the screw conveyor feed port 43 and the charging bin discharge port 51 are on the same vertical line. In this embodiment, the inner diameter of the screw conveyor feed port 43 is equal to the inner diameter of the charging bin discharge port, which is φ36mm.

[0039] The feeding bin discharge port 51 and the screw conveyor feed port 43 are connected and sealed by a flexible connection.

[0040] The screw conveyor motor 44 used in the screw conveyor is a variable frequency motor equipped with a frequency converter, and the discharge flow rate is adjustable during operation. The screw conveyor screw 42 is arranged horizontally. The inner diameter of the screw conveyor outlet 41 is greater than or equal to the inner diameter of the disc crusher feed port 33, and the centers of the two circles are on the same vertical straight line. In this embodiment, the inner diameter of the screw conveyor outlet 41 is equal to the inner diameter of the disc crusher feed port 33, which is φ36mm.

[0041] The screw conveyor outlet 41 is located higher than the upper edge of the middle layer 23 of the fixed frame 2. The screw conveyor outlet 41 and the disc crusher feed port 33 are connected and sealed by a soft connection.

[0042] The disc crusher 3 is installed on the bottom layer 22 of the fixed frame 2. The discharge port of the disc crusher 3 is lower than the bottom edge of the bottom layer 22 of the fixed frame 2. The discharge port 32 of the disc crusher is provided with a straight-through terminal of an air pipe for filling the system with inert gas. The inner diameter of the discharge port 32 of the disc crusher is greater than or equal to the inner diameter of the feed port 12 of the receiving barrel, and the centers of the two circles are as close to the same vertical line as possible during operation. In this embodiment, the inner diameter of the discharge port 32 of the disc crusher is equal to the inner diameter of the feed port 12 of the receiving barrel, which is φ105mm.

[0043] The material receiving barrel feed port 12 and the disc crusher discharge port 32 are connected and sealed by a flexible connection.

[0044] The working principle of the small metal crushing system with inert gas protection in this embodiment is as follows: when working, the feeding port 54 of the feeding bin is opened, and materials with suitable particle size are loaded, and inert protective gas is charged from the charging port 31 located at the material outlet 32 ​​of the disc crusher. After the requirements are met, the disc crusher 3 and the screw conveyor 4 are turned on, and the materials flow into the screw conveyor 4 through the feeding bin 4, and then are transported by the screw conveyor 4 into the disc crusher 3 for crushing, and the crushed materials enter the receiving barrel 1. After the operation is completed, the soft connection at the receiving barrel 1 is disassembled, the receiving barrel 1 is removed, and the materials are poured into a suitable container to complete a crushing operation.

[0045] The flexible connections are all made of soft rubber sheets (0.8 mm thick) cut into suitable shapes and fixed with glue.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A small metal crushing system with inert gas protection, characterized in that: The invention comprises a material receiving barrel (1), a fixed frame (2), a disc crusher (3), a screw conveyor (4) and a feeding bin (5), wherein the feeding bin (5) is arranged on the uppermost layer (24) of the fixed frame, and the screw conveyor (4) is arranged below the material feeding bin (5) and installed on the middle layer (23) of the fixed frame; the disc crusher (3) is arranged below the screw conveyor (4) and installed on the lowermost layer (22) of the fixed frame, and the material outlet (32) of the disc crusher is provided with a charging port (31) for charging inert gas into the disc crusher; and the material receiving barrel (1) is arranged below the disc crusher (3).

2. The small metal crushing system with inert gas protection according to claim 1 is characterized in that: A feeding bin feeding port (54) is arranged in the middle of the feeding bin upper cover (53), a vent hole (55) is arranged in the middle of the feeding bin feeding port (54), the feeding bin upper cover (53) and the feeding bin (52) are fixed by bolts, and a feeding bin discharge port (51) is arranged at the bottom of the feeding bin (5).

3. The small metal crushing system with inert gas protection according to claim 2 is characterized in that: When the upper cover (53) of the feeding bin is connected to the upper flange of the bin (52), a silicone pad is added in the middle for sealing.

4. The small metal crushing system with inert gas protection according to claim 1 is characterized in that: The inner diameter of the screw conveyor feed port (43) is greater than or equal to the inner diameter of the feeding bin discharge port (51), and the centers of the screw conveyor feed port (43) and the feeding bin discharge port (51) are located on the same vertical line; The feeding bin discharge port (51) and the screw conveyor feed port (43) are connected and sealed using a flexible connection.

5. The small metal crushing system with inert gas protection according to claim 1 is characterized in that: The screw conveyor motor (44) is a variable frequency motor.

6. The small metal crushing system with inert gas protection according to claim 1 is characterized in that: The inner diameter of the screw conveyor outlet (41) is greater than or equal to the inner diameter of the disc crusher feed port (33), and the centers of the two circles are on the same vertical line; The screw conveyor outlet (41) and the disc crusher feed port (33) are connected and sealed using a flexible connection.

7. The small metal crushing system with inert gas protection according to claim 1 is characterized in that: The inner diameter of the material discharging port (32) of the disc crusher is greater than or equal to the inner diameter of the material feeding port (12) of the material receiving barrel.

8. The small metal crushing system with inert gas protection according to claim 1 is characterized in that: The material receiving bucket (1) is arranged on a tray (11) with universal wheels.

9. The small metal crushing system with inert gas protection according to claim 1, characterized in that: The uppermost layer (24) of the fixing frame is provided with a cross brace; And / or, the upper edge of the middle layer (23) of the fixed frame is lower than the outlet (41) of the screw conveyor; and / or, the bottom side frame of the middle layer (23) of the fixed frame is higher than the height of the feed opening (33) of the disc crusher; and / or, the lower edge of the bottommost layer (22) of the fixed frame is higher than the discharge port (32) of the disc crusher; And / or, the height of the bottom layer (22) of the fixing frame is higher than the height of the material receiving bucket (1).

10. The small metal crushing system with inert gas protection according to claim 1, characterized in that: The bottom of the fixing frame (2) is provided with a supporting leg (21), and the bottom of the supporting leg (21) is provided with a wheel, wherein the wheels are four in number, two universal wheels and two fixed wheels.

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